SciELO - Scientific Electronic Library Online

 
vol.61Characterization and cardiovascular effects of (13S)-9α,13α-epoxylabda-6β(19),15(14)diol dilactone, a diterpenoid isolated from Leonotis leonurus author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • On index processSimilars in Google

Share


South African Journal of Chemistry

On-line version ISSN 1996-840X
Print version ISSN 0379-4350

S.Afr.j.chem. (Online) vol.61  Durban  2008

 

SHORT COMMUNICATION

 

Preparation of ultra-fine calcium carbonate by a solvent-free reaction using supersonic airflow and low temperatures

 

 

Yan-Hua CaiI, *; Dong-Mei MaII; Ru-Fang PengI; Shi-Jin ChuI

ISchool of Material Science and Engineering, Southwest University of Science and Technology, Mianyan, Sichuan 621010, People's Republic of China
IISchool of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong, Sichuan 643000, People's Republic of China

 

 


ABSTRACT

The treatment of calcium chloride with sodium carbonate under solvent-free conditions with a supersonic airflow and at a low heating temperature leads to the synthesis of ultra-fine calcium carbonate. The reaction not only involves mild conditions, a simple operation, and high yields but also gives a high conversion rate.

Keywords: Supersonic airflow, solvent-free reaction, low temperature, calcium carbonate


 

 

Full text available only in pdf format.

 

Acknowledgements

The authors are very appreciative of financial support received from the Science and Technology Bureau of Sichuan Province (2006Z02-025).

 

References

1 D.Z. Jia, WW. Ge, C.F. Jin and X.Q. Xin, Chin. J. Inorg. Chem., 2004, 20, 881-888.         [ Links ]

2 C.F. Jin, S. Jing and X.Q. Xin, Chin. J. Inorg. Chem., 2002, 18, 859-870.         [ Links ]

3 G. Kaupp, J. Schmeyers, M.R. Naimi-Jamal, H. Zoz and H. Ren, Chem. Eng. Sci., 2002, 57, 763-765.         [ Links ]

4 G.S. Gai, Non-Metallic Mining Herald, 2003, 12, 13-15.         [ Links ]

5 G. Roy, Industrial Minerals, 1995, 2, 49-55.         [ Links ]

6 C.G. Liu, K.M. Zhu, Y.H. Wang, J.F. Chen, G.Y. Rao and W. Harm, J. Chem. Eng. Chin., 2001, 15, 490-93.         [ Links ]

7 S. Wang and Q.F. Hu, Inorg. Chem. Industry, 2002, 34, 8-10.         [ Links ]

8 G.T. Li, Q.F. Hu and X.J. Bao, Non-Metallic Mines, 2000, 23, 34-39.         [ Links ]

9 J.Y. Wang, D.Z. Jia and M.D. Tao, J. Fun. Mater., 1998, 29, 598-599.         [ Links ]

10 G.Y. Zeng, F.D. Nie and X.D. Liu, Mat. Sci. Eng., 2001,19, 80-83.         [ Links ]

11 Z.Q. Liu, X.B. Li and Z.H. Peng, Chemistry, 1999, 7, 54-57.         [ Links ]

12 Q.J. Xue and W.M. Liu, Progr. Chem., 1997, 9, 311-317.         [ Links ]

 

 

Received 6 August 2007
Revised 19 September 2008
Accepted 9 October 2008

 

 

* To whom correspondence should be addressed. E-mail: caiyh651@yahoo.com.cn

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License